WRITE A PROGRAM TO DISPLAY LIST OF FILES,THE CURRENT WORKING USER'S LIST AND PRESENT WORKING DIRECTORY
1.VI SPL
IS-X
WHO
PWD
:WQ(SAVE AND QUIT)
EXECUTION OF SHELL PROGRAM:
SH IS THE COMMAND TO EXECUTE BOURNE SHELL PROGRAMS
EG:$SH SPL
OR
$CHMOD 744 SPL
$SPL

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